Crave that cup of coffee in the morning? Globally, consumers drink more than 2.2 billion cups daily. Someone grows all that joe: More than 100 million farmers worldwide produce coffee.
Plants & Animals
Jul 25, 2024
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68
The melting of one of North America's largest icefields has accelerated and could soon reach an irreversible tipping point. That's the conclusion of new research colleagues and I have published on the Juneau Icefield, which ...
Environment
Jul 6, 2024
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359
On Everest's sacred slopes, climate change is thinning snow and ice, increasingly exposing the bodies of hundreds of mountaineers who died chasing their dream to summit the world's highest mountain.
Environment
Jun 27, 2024
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103
Located in southwest China, the Hengduan Mountains (HDM) are one of the world's biodiversity hotspots, characterized by diverse topography and exceptionally high mountain biodiversity. Rorippa elata (Brassicaceae) is an endemic ...
Plants & Animals
Jun 17, 2024
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0
Carbonaceous aerosols not only alter the atmospheric radiation budget, but also accelerate glacier melt by reducing the albedo of ice and snow surfaces. However, due to the heterogeneity of carbonaceous aerosols, the identification ...
Earth Sciences
Jun 11, 2024
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0
Under the background of global warming, the Mount Everest region has experienced evident climate changes. Glaciers and snow have been rapidly retreating in this region. These changes increase the rate of warming and water ...
Earth Sciences
May 28, 2024
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24
Climate warming, a result of increasing greenhouse gas emissions, is causing significant shifts in the composition of plant species with different traits worldwide. These changes are particularly pronounced in colder or higher ...
Plants & Animals
May 23, 2024
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1
Last week, a huge solar flare sent a wave of energetic particles from the sun surging out through space. Over the weekend, the wave reached Earth, and people around the world enjoyed the sight of unusually vivid aurora in ...
Planetary Sciences
May 13, 2024
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33
American biologist Laura Brennan describes the coin-sized Karner blue butterfly as "very delicate and graceful" with a "lovely blue" coloring and "just a little speckling of orange."
Ecology
May 13, 2024
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4
New research led by the University of Sydney offers fresh understanding of the migration patterns of Australia and New Guinea's First Peoples, and where they lived in the 40,000 years following humanity's arrival on the then ...
Archaeology
May 4, 2024
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69
Altitude or height is defined based on the context in which it is used (aviation, geometry, geographical survey, sport, and more). As a general definition, altitude is a distance measurement, usually in the vertical or "up" direction, between a reference datum and a point or object. The reference datum also often varies according to the context. Although the term altitude is commonly used to mean the height above sea level of a location, in geography the term elevation is often preferred for this usage.
Vertical distance measurements in the "down" direction are commonly referred to as depth.
This text uses material from Wikipedia, licensed under CC BY-SA
